Gotthold langer



(No Model.) G. LANGER.

AUTOMATIC SMOKE CONSUMER. No. 438,005. Patented 0st. 7, 1890.

Inn/51ml? A TTORIVEY UNITED STATES" PATENT GOTTI'IOLD LANGER, OFTRENTON, MISSOURI, ASSIGNOR OF ONE-HALF TO HENRY HOFFMAN, OF SAME PLACE.

AUTOMATIC SMOKE-CONSUMER.

SPECIFICATION forming part of Letters Patent No. 438,005, dated October'7, 1890.

Application filed January 24,1890. Serial no. 338,033. (No model.)

To all whom it may concern.-

Be it known that I, GOTTHOLD LANGER, a citizen of the United States,residing at Trenton, in the county of Grundy and State of Missouri, haveinvented certain new and useful improvements in admitting air above thefire to furnaces and fire-boxes of steam-boilers for the purpose ofpreventing the accumulation of dense black smoke, of which the followingis a specification.

Heretofore smoke has been prevented by admitting a certain per cent. ofair above the fire through pipes or tubes set in and made solid in thesides of fire-boxes and furnaces; but said pipes and tubes standing openpermanently result in a great loss of heat or evaporating power of theboiler and thereby increasing the expense of fuel for heating suchfurnaces or lire-boxes.

My invention is to prevent the accumulation and escape of dense blacksmoke by admitting air through pipes and tubes above the fire tofurnaces and fire-boxes of steamboilers and to shut off the airautomatically without the attention of engineer or fireman after it hasaccomplished its purpose, (of preventing the accumulation and escape ofdense black smoke,) so as not to cool unnecessarily the interior of suchfurnaces and fire-boxes as to result in a loss of heat orevaporatingpower of the boiler. I attain these objects by the mechanismillustrated in the accompanying drawing, in which the figure is an endelevation of a steam-boiler and furnace provided with my improvement.

In the construction shown the globe-valve a admits and shuts off thesteam when neces sary. After there is sufiicient steam-pressure in theboiler to admit the working of my invention the globe-valve a is leftopen. The rod b, which passes through the hinges of the firedoor and ismade fast thereto by means of pins, is extended and used as avalve-stem,having a steam-tight valve attached to its lower end withinthe valvecasing 0. By opening the fire-door the rod b will have to turnin its bearings, and in so doing will turn the valve within thevalve-casin g c. This movement will allow the steam to rush into thesteamcylinder d and push the piston made fast to the piston-rod 7?, inthe direction of the shaft m. (Represented at the left side of the drawing.

The cylinder cl has a hole in one end (the left end in the drawing) justlarge enough to permit the easy movement of the piston-rod n and to holdthe piston-rod n firmly in the center of the cylinder cl. The other endof the cylinder d (the end nearest the right side of the drawing) ismade steam -tight with packing in the stuffing-box e.

The piston-rod 02 also passes through the stuffing-box e, and is madelongenough to admit the compression of the spiral spring f to give itsufficient power of extension to force the piston-rod it back to thepoint of start ing. The piston-rod 'n has threads cut on it for adistance to allow the nut g to be screwed against the spiral spring f toadjust it accord ing to the time the air tubes or pipes are required tobe left open. The piston-rod n, is fastened at both ends toconnecting-rods, as o, and levers forged or cast on the shaft m.

The top of the shaft '01- has levers also, which are fastened toconnecting-rods, similar 7 5 to 0, which are connected with a slide h,which is held by the gibs 7t and k to the bottom plate 7 which can beseen through the holes in the sliding plate h. This bottom plate 11 isfastened directly to the sides of the furnace or firebox. The bottomplate 1' and also the slide h have holes drilled through them at equaldistances from center to center, so that when the slide h moves on thebottom plated it will either open or close the holes in the bottom plate21 The tubes or pipes leading into the inside of the furnace or fire-boxare the same distances from each other from center to center as theholes in the bottom plates and slides, so that when the plates 71 arefast- 0 ened over the tubes or pipes the openings in the tubes or pipesshall correspond to the holes in the plates and slides.

As the slide h is connected by connectingrods, like 0, to the shaft m,and the shaft on is 5 connected by its levers and connecting-rods withthe piston-rod n, it follows that the movement of the slides, like h, isdependent upon the motion of the piston-rod n. Further, as the openingof the fire-d0or causes Ioo the steam to rush into the steam-cylinder dand move the piston-rod n, this movement will also cause the slides,like h, to move and open all the tubes covered by the slides and allowthe air to pass into the fire-box.

The closing of the fire-door shuts off the steam, except the quantity ofsteam already in the cylinder cl. This steam in the cylinder 01 V willgradually condense, and thereby weaken the resistance which causes thecompression of the spiral spring f. The spiral spring f will graduallyovercome the resistance of the condensing steam, and by its power of'extension will push the piston-rod n and all its connections and slideback to their former positions as before opening the fire-door.

Other slides, which can be seen in the drawings, are connected to thesides of the boiler. The number of these slides depends upon the numberof air-tubes to be inserted in the boiler.

The length of time for the tubes to be left open can be regulated by thenut g, which will increase or lessen the resistance of the spiralspring'f, and thereby shorten 0r lengthen the stroke of the piston-rodnand all slides connected thereto and controlled thereby;

In the bottom of the steam-cylinder d isa valve 00 on one end of thesteam-cylinder d, and under the other end of the steam-cylinder cl is adrain-pipe to drain off the Water confined in the steam cylinder (Z andcreated by the? condensinggof the steam.

The valve m is intended to open by the pressure of the atmosphere or airwhen the 1. In anapparatus, substantially as de scribed, the combinationof the furnace, the devices for admitting air to said furnace,steam'operated devices by which toactuate theair-inlet devices, a valveby which to control the-supply'of steam to the steam-operated'dBVIGGSythB furnace-doonand connectionsbetween the said door and thesteamvalve whereby the said valve may be oper ated by the opening and.closing of the furnace-door, all substantially as and for the purposesset forth.

2. The combination of thefurnace, its door and. air-inlet devices, asteam-cylinder provided with a piston connected with and adapted tooperate such air-inlet devices and having its piston-rod extended andprovided with an actuating-spring by which to operate said piston toclosethe air-inlet devices, the steam: supply devices leading to thesaid steam-cylinder and provided with a valve, and connections betweensaid valve and the furnacedoor, all substantially as and for thepurposes set forth. 4

- 3. The combination, in an apparatus, substantially as described, ofthe furnace, its door, the air-inlet devices, the steam-cylinder hav-'ing its piston connected with and arranged to valve-casing, and thevalve operating therein and connected with the furnace-door, where by itmay be operated by the movements of said door, substantially as and forthe purposes set forth.

4:. In an apparatus, substantially as. described, the combination of thefurnace,- devices for admitting air thereto, steam-operated devicesforoperatin g said inlet devices,a valve by which to control the supplyof steamto the steam-operated devices, and a rod connected with andarranged to be turned by the open- 7 ing and closing of the door, saidrod. being connected with and arranged to open'and close the valve, allsubstantially as and for the purposes set forth.

5. The combinatiomin an apparatus,,substantially as described, of thefurnace, its door,

the air-inlet devices including the perforated 9o slides,the shaftshaving crank-arms connected with said slides and crankarms-for. connec--tion with the piston-rod, the cylinder, and piston, the latter havingits rod connected with the crank-arms of theshafts, the valvecontrolling the admission ofi steam to the cylinder, and connectionsbetweensaid valve and the furnace-door, whereby the opening of the doormay operate the valve, substantially.- as set forth.

6. The combinationof the furnace, itsdoor, the air-inlet devices,thecylinder d,having its piston connected with the inlet devices to operatethe same, the valvecasing:c, a pipe connectingsaid casing with thecylinder d,

the pipe connectingsaid casing withtheboiler and provided with athrottlea, the valve in said casing, the furnace-door, and the rod 1),connecting said door with thevalve in'casing c, all substantially as andfor the purposes no set forth.

GOTTHOLD LAN-GER Witnesses:

AMBROS GEARY, JOSEPH L. GROSS.

